参数解释：
MASTER_HOST : 设置要连接的主服务器的ip地址
MASTER_USER : 设置要连接的主服务器的用户名
MASTER_PASSWORD : 设置要连接的主服务器的密码
MASTER_LOG_FILE : 设置要连接的主服务器的bin日志的日志名称
MASTER_LOG_POS : 设置要连接的主服务器的bin日志的记录位置
-- 启动slave 状态(开始监听msater的变化)
mysql> start slave;
Query OK, 0 rows affected, 1 warning (0.00 sec)
-- 查看slave的状态.
mysql> show slave status\G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.219.24.25
Master_User: slave26
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: binlog.000017
Read_Master_Log_Pos: 980
Relay_Log_File: relay.000002
Relay_Log_Pos: 280
Relay_Master_Log_File: binlog.000017
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB:
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 980
Relay_Log_Space: 443
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 0
Master_SSL_Verify_Server_Cert: No
Last_IO_Errno: 0
Last_IO_Error:
Last_SQL_Errno: 0
Last_SQL_Error:
Replicate_Ignore_Server_Ids:
Master_Server_Id: 25
Master_UUID: 29d68531-4cf9-11e7-8e1f-000c297c4100
Master_Info_File: /data/mysql/master.info
SQL_Delay: 0
SQL_Remaining_Delay: NULL
Slave_SQL_Running_State: Slave has read all relay log; waiting for the slave I/O thread to update it
Master_Retry_Count: 86400
Master_Bind:
Last_IO_Error_Timestamp:
Last_SQL_Error_Timestamp:
Master_SSL_Crl:
Master_SSL_Crlpath:
Retrieved_Gtid_Set:
Executed_Gtid_Set:
Auto_Position: 0
1 row in set (0.00 sec)
ERROR:
No query specified
10、 整体测试
10.1 主1数据测试，看其他复制同步情况
-- 主1 创建
mysql> create database m1;
Query OK, 1 row affected (0.11 sec)
-- 主2 查看
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| binarylog |
| m1 |
| mm_repl |
| mysql |
| performance_schema |
| relaylog |
| repl |
| test |
+--------------------+
9 rows in set (0.00 sec)
-- 从1 查看
mysql> show databases;
+--------------------+
| Database |
+--------------------+
| information_schema |
| binarylog |
| m1 |
| mm_repl |
| mysql |
| performance_schema |
| relaylog |
| repl |
| test |
+--------------------+
9 rows in set (0.05 sec)
10.2 主2 创建数据，看其他复制同步情况
-- 主2 创建
mysql> use m1;
Database changed
mysql> create table andy(id int);
Query OK, 0 rows affected (0.02 sec)
mysql> insert into andy values(1);
Query OK, 1 row affected (0.00 sec)
-- 主1 查看
mysql> use m1;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> select * from andy;
+------+
| id |
+------+
| 1 |
+------+
1 row in set (0.00 sec)
-- 从1 查看
mysql> use m1;
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -A
Database changed
mysql> select * from andy;
+------+
| id |
+------+
| 1 |
+------+
1 row in set (0.00 sec) >成功，双主一从搭建成功！